Research On The Influence Of Different Aspects Ratios On Behavior Of Recycled Concrete Lattice Walls

Recycled concrete lattice wall is a new type of wall structure. This structure is based on theconcrete lattice walls, and recycled concrete are used in the structure. The seismic performanceof recycled concrete lattice walls is studied by loading reciprocating load on three specimenswith different aspect ratios for pseudo-static testing and theoretical analysis of experimentaldatum in this paper.According to the theory and data collection in the early stage, working process of specimen,lading equipment and instrument, loading method and collection process of datum are introducedin this paper, besides, stress mechanism and failure characteristic of specimens are also analyzed.Cracking load, ultimate load and failure load can be obtained by analyzing the experiment datum,load-displacement hysteresis curves and load-displacement skeleton curves of specimens withdifferent aspect ratios can be plotted. Energy dissipation factor, energy and the equivalentviscous damping coefficient of specimens can be obtained by analyzing hysteresis curves,ductility coefficient and ultimate drift of specimens can also be got by studying skeleton curves.Comparing with concrete lattice walls which were studied by our groups, the mechanicalproperty of recycled concrete members is received.According to hysteresis curves and skeleton curves, it can be got that recycled concretelattice walls has high bearing capacity and shear failure; with different aspect ratios, hysteresiscurves have good stability, and hysteresis loop is shuttle-type and no restriction, these shows thatthis wall has good energy dissipation capacity. According to hysteresis curves，aspect ratios haveobvious contributions on bearing capacity of specimens, with the increasing of aspect ratio,bearing capacity of specimens decrease obviously; on the other hand, aspect ratios have obviouscontributions on ductility of specimens, with the increasing of aspect ratio, ductility coefficientof specimens decrease accordingly. Ultimate bearing capacity and energy of recycled concretemembers with different parameters are both decrease with comparing with that of concretemembers, but the range of decrease is not obvious, it shows that recycled concrete can be appliedinto the architectural structure.